MTRG_METAC
ID MTRG_METAC Reviewed; 73 AA.
AC Q8TU05;
DT 15-DEC-2003, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2002, sequence version 1.
DT 25-MAY-2022, entry version 101.
DE RecName: Full=Tetrahydromethanopterin S-methyltransferase subunit G {ECO:0000255|HAMAP-Rule:MF_01500};
DE EC=2.1.1.86 {ECO:0000255|HAMAP-Rule:MF_01500};
DE AltName: Full=N5-methyltetrahydromethanopterin--coenzyme M methyltransferase subunit G {ECO:0000255|HAMAP-Rule:MF_01500};
GN Name=mtrG {ECO:0000255|HAMAP-Rule:MF_01500}; OrderedLocusNames=MA_0270;
OS Methanosarcina acetivorans (strain ATCC 35395 / DSM 2834 / JCM 12185 /
OS C2A).
OC Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC Methanosarcinales; Methanosarcinaceae; Methanosarcina.
OX NCBI_TaxID=188937;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35395 / DSM 2834 / JCM 12185 / C2A;
RX PubMed=11932238; DOI=10.1101/gr.223902;
RA Galagan J.E., Nusbaum C., Roy A., Endrizzi M.G., Macdonald P., FitzHugh W.,
RA Calvo S., Engels R., Smirnov S., Atnoor D., Brown A., Allen N., Naylor J.,
RA Stange-Thomann N., DeArellano K., Johnson R., Linton L., McEwan P.,
RA McKernan K., Talamas J., Tirrell A., Ye W., Zimmer A., Barber R.D.,
RA Cann I., Graham D.E., Grahame D.A., Guss A.M., Hedderich R.,
RA Ingram-Smith C., Kuettner H.C., Krzycki J.A., Leigh J.A., Li W., Liu J.,
RA Mukhopadhyay B., Reeve J.N., Smith K., Springer T.A., Umayam L.A.,
RA White O., White R.H., de Macario E.C., Ferry J.G., Jarrell K.F., Jing H.,
RA Macario A.J.L., Paulsen I.T., Pritchett M., Sowers K.R., Swanson R.V.,
RA Zinder S.H., Lander E., Metcalf W.W., Birren B.;
RT "The genome of Methanosarcina acetivorans reveals extensive metabolic and
RT physiological diversity.";
RL Genome Res. 12:532-542(2002).
CC -!- FUNCTION: Part of a complex that catalyzes the formation of methyl-
CC coenzyme M and tetrahydromethanopterin from coenzyme M and methyl-
CC tetrahydromethanopterin. This is an energy-conserving, sodium-ion
CC translocating step. {ECO:0000255|HAMAP-Rule:MF_01500}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-methyl-5,6,7,8-tetrahydromethanopterin + coenzyme M + 2
CC Na(+)(in) = 5,6,7,8-tetrahydromethanopterin + methyl-coenzyme M + 2
CC Na(+)(out); Xref=Rhea:RHEA:53492, ChEBI:CHEBI:29101,
CC ChEBI:CHEBI:58103, ChEBI:CHEBI:58116, ChEBI:CHEBI:58286,
CC ChEBI:CHEBI:58319; EC=2.1.1.86; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01500};
CC -!- PATHWAY: One-carbon metabolism; methanogenesis from CO(2); methyl-
CC coenzyme M from 5,10-methylene-5,6,7,8-tetrahydromethanopterin: step
CC 2/2. {ECO:0000255|HAMAP-Rule:MF_01500}.
CC -!- SUBUNIT: The complex is composed of 8 subunits; MtrA, MtrB, MtrC, MtrD,
CC MtrE, MtrF, MtrG and MtrH. {ECO:0000255|HAMAP-Rule:MF_01500}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_01500};
CC Single-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_01500}.
CC -!- SIMILARITY: Belongs to the MtrG family. {ECO:0000255|HAMAP-
CC Rule:MF_01500}.
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DR EMBL; AE010299; AAM03723.1; -; Genomic_DNA.
DR RefSeq; WP_011020328.1; NC_003552.1.
DR AlphaFoldDB; Q8TU05; -.
DR SMR; Q8TU05; -.
DR STRING; 188937.MA_0270; -.
DR EnsemblBacteria; AAM03723; AAM03723; MA_0270.
DR GeneID; 1472162; -.
DR KEGG; mac:MA_0270; -.
DR HOGENOM; CLU_191926_0_0_2; -.
DR InParanoid; Q8TU05; -.
DR OMA; PQVIMDP; -.
DR OrthoDB; 130315at2157; -.
DR PhylomeDB; Q8TU05; -.
DR UniPathway; UPA00640; UER00698.
DR Proteomes; UP000002487; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0030269; F:tetrahydromethanopterin S-methyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0019386; P:methanogenesis, from carbon dioxide; IEA:UniProtKB-UniPathway.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:0006730; P:one-carbon metabolic process; IEA:UniProtKB-UniRule.
DR HAMAP; MF_01500; MtrG; 1.
DR InterPro; IPR005866; THM_MeTrfase_su_G.
DR Pfam; PF04210; MtrG; 1.
DR PIRSF; PIRSF006500; MtrG; 1.
DR TIGRFAMs; TIGR01149; mtrG; 1.
PE 3: Inferred from homology;
KW Cell membrane; Membrane; Methanogenesis; Methyltransferase;
KW One-carbon metabolism; Reference proteome; Transferase; Transmembrane;
KW Transmembrane helix.
FT CHAIN 1..73
FT /note="Tetrahydromethanopterin S-methyltransferase subunit
FT G"
FT /id="PRO_0000147553"
FT TRANSMEM 48..68
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01500"
SQ SEQUENCE 73 AA; 8080 MW; 8420074B28813DBE CRC64;
MDGKAPAAYV DPAEFNEVMK RLEKIDEKVE FVNSEVAQRI GKKVGRDIGI LYGAVVGLLL
FLIYVSVSSM FTI
